Pigmen Umbi Ubi Jalar Ungu dan Rimpang Kunyit: Indikator Ramah Lingkungan dan Murah untuk Eksperimen Titrasi Asam-Basa
Maria Aloisia Uron Leba,
Sisilia Daeng Bakka Mau,
Erly Grizca Boelan
et al.
Abstract:[Pigments of Purple Sweet Potato and Turmeric Rhizome: Eco-Friendly and Cheap Indicators for Acid-Base Titration Experiment]
Tujuan dari penelitian ini adalah mengkaji karakter pigmen umbi ubi jalar ungu (PUUJU) dan pigmen rimpang kunyit (PRK) pada larutan uji dan penggunaannya sebagai indikator titrasi asam basa dibandingkan dengan indikator fenolftalein. PRK diekstraksi dengan pelarut etanol sedangkan PUUJU diekstraksi dengan pelarut etanol dalam suasana asam. PUUJU dan PRK diuji karakter perubahan warnanya … Show more
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